Horological instrument.



P. J. HORSTMAN. HOBOLOGICAL INSTRUMENT.

APPLIGATIOIFILED un. 25, 1911.

Patented Jan. 27, 1911 I SHEETS-SHEET 1.

F. J. HORSTMAN. EOROLOGIGAL INSTRUMENT.

APPLICATION FILED APB. 25,1911

1,085,206. Patented Janl 27, 191; EBHEBTB-SHEET '2.

50 50 fzwnzzr ilNliTED FRA NK J. HORSTMAN, OF I'IECQ AIFTA,

HQRULE'J CAL INSTLEUELIE "NOISE, TUBING COIVLMNY. OF CI IC J, ELLEN 931$.

of Illinois, have invented a certain new and useful Improvement in Horological lnstrumerits, of which the following is a full, clear.

concise, and exact description, reference being had to the accompanymg drawings, forming a part of this specification.

M invention relates to horolo ical inf .struments and more particularly iO SUCil instruments in which the movement or driv iug mechanism thereof is mounted on and curriedby the hands thereof. Vhen device of this'kind is utilized for time eating purposes two hands are used are the ordinary hour hand minute hand and each hand is provided with 'a ing mechanism or movement commonly= called a horological motor which is pivotally mounted and unequally balanced so that the rotation of thesaid movement will disturb the equilibrium of the hand and cause thehand to rotate in response to operations of the movement: My invention is pa cularly concerned with improvements instruments of this character so as to make them of greater applicability and to nevide them with means of proper adjustmentso that they may be aocommodated or commodate themselves to different temperatures or other changed conditions or" operation/ My structure also enablesme to make a device very light and easily balanced so that it will operate more accurately. inn proved means for mounting the driving mechanism are also features of my invention.

My. invent-ion in its preferred form also contemplates improved means for mounting the device to a suitable support and also improved means for setting the motor mech anism accurately before the device is started in motion.

I will describeniy invention more in detail by reference to theaccompanying drawing illustrating the preferred embodiment thereof, in which:

Figure 1 is a front view of a clock elubodying my invention; Fig. 2 is a detail view of the setting mechanism; Fig. 3 is a detail view of the means for associating the movement to the hour hand; Figs. 4: and 5 are details of construction illustrating the l-l'ons'rinix. I

indi- 5 Specification of Letters I I I f I I I I I I I detail 9 a dial 1 provi and hand 4.- with the dial hand s vided with movemei the hour h HIOVQm the mo. nun-mounts and are at 9. Ti 1 l". and S04; which sockets are of a iilustrm in Figs. may be A 10, wh' a slight aps 8 serves to thereof under the l to indicate the time.

LET UFFICE.

H'OBSTIVIAN 1IIIANUFAC- listen-ted Jan. 2 t, 1914.

g cap; Fig. 6 is 51 illustrated in Fig.

- letail view of the mounting view of the adjust- 1s a cross-sectional view rorth in Fig. 8; Fig. 16 is of the spring cap associated echanism of Fig. 7, and Fig. ll il view showing the attachment of n t to the minute hand.

more particularly to F i 1, I

(led with indicia respectively a minute hand 3 pivoted at 5 coiiperate Each a watch or cloclr and thriving the o and the minute hand'3 having Capsct' wood 8 inclose the fastened to the hands nds are provided with bolts l0 ii are provided in the caps 8, bayonet character, as at and so that 'ted in place around the bolts rotation of the said brlng projecting portions heads of the bolts 10,

the caps whereby to hold these caps in place and to make tl able.

In the illustration of hour whee. frictionally a bolt 13 so as to hold rem readily removable and replace- Fig. 3 I show the 12 whose projecting sleeve is engaged with a slot provided in the said hour Wheel securely against the said bolt so that the movement 6 may hours about the bolt l3 14 holds the bolt rotate once every twelve as an axis. A nut 13 in place on the hand 4.

Reterring to Fig. 11 the improved means for mounting the clock minute hand are set for comprise a center arbor the center wheel idly se ed is fixedly secured withi vided in the hand 3. place by a nut l hour around the bolt 17 great hull; of ments is rotation. disturbs mounted hands to which The bolt lTis-held mechanism to the th and these means 15 forming part of 1G, or being otherwise rigthereto, which center arbor 15 n the bolt 17 roh 8. in this manner it will be seen that the movement 4' rotates once an as these movemovements of the 'pivotallv they are associated,

an axis. As the l the Weight of eccentric as respects their axis of the rotating of these the equilibrium and thereby causes rotation of these hands about their pivotal mounting 5, thereby to indicate the time in accordance with the actuations of the movements 6 and 7 In Figs. 7 and 10, I have illustrated. improved means for supporting the hands 3 and 4. In these views as also in Fig. 6, I show a pane of glass 19 to which a transparent dial 20- may be attached. A conical wooden support 21 is provided which is glued to the glass 19 at 22 and this'wooden support 21 holds the hands 3 and 4:. The hands 3 and l are mounted upon a spindle 23 which projects from the support 21. The

hand 3 has a hole drilled in the proper place for mounting purposes,which hole is hushed by means of a hollow metallic sleeve 24 held in place on said hand by means of a nut 25. The hour hand 4 is also properly drilled and is provided with a metallic sleeve 26 held in place by the nut 27. These sleeves are mounted upon the spindle 28 and a cylindrical distance piece 28 is provid d between them to aline them and prevent interference between them. In order to hold the hands and the distance piece 28 properly upon the spindle, I use a split friction sleeve 29 illustrated in Figs. 6, 7 and 10 which is placed into frictional engagement with the said spindle 23 and is securely held in place frictionally thereon.

In order properly to balance the hands so that they will move accurately in response to the rotations of movements associated therewith', it is essential that very delicate and easily adjustable means are provided, and these are set forth more in detail in Figs. 8 and 9. These means concerned are provided upon both hands and consistof two guides 30, 30 between which a metallic serrated rod 31 is placed which is movable longitudinally of the hand with which it is associated. A

spring catch 32 having two pro]ecting arms 33, 83 engages the serrations of the element 31 and holds the same in the position in which it has been placed. The arms 33 extend into the guide 30 and hold the said spring catch in place.

An important feature of my invention contemplates means for setting the movement to the desired hour of day before the hands are mounted in place upon their rotatable support, and this means is more clearly illustrated in Fig. 2. In this figure the hand Copies 01' this patent may be obtained for five cents each, by addressing the nosaaoe the i has a supplemental dial composed of hour numerals, or minute numerals in case of the minute hand, in cooperation withwhich numerals I provide a lug associated with the movement 6. its the move ment rotates about its center pivotal point the lug 34 points-to the exact hour to which the band would point with the hand pivotally mounted on its support. in this manner the mechanism may be properly set "to the desired hour before the hands are placed in. their operative position upon the spindle 23.

q'lhe various novel features of my invention will thus be clear and while-l have de scribed these features specifically with rela- 'bor, and means for frictionally tion to one form which these specific featuresmay take, I do not limit myself to such specific construction and arrangement as the invention is capable of a variety of modifications and uses, but

Having thus described. one form of carrying out my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device of the character described having a pivotally mounted hand, a horologicalmotor for driving same carried by said hand, said motor having a center ar securing saidcenter arbor t0 the hand, said means includinga metallic bushing of hollow interior for engaging said arhozyand a nut for securing said bushing to the hand.

2. A device of the character described having a pivotally' mounted hand, a horological motor near one extremity of said hand, .and means mounted uponsaid hand for adjustingthe center of gravity thereof, said means including a serrated weight element, and spring retaining means therefor.

A. device of the character described having a pivotally mounted hand, a horological motor near one extremity of said hand, and means mounted upon said hand for adjusting the center of gravity thereof,

said means including a serrated weight element, guides for said element, am spring retaining means therefor.

In witness whereof, I hereunto subscribe my name this 20th day of April, A. l), 1911.

FRANK J. llOlitS'llMfi N. Witnesses A. Lrm. Jonas, HAZEL Jonas.

Commissioner of Patents.

eshington, 31. U. 

